... LED: max brightness is 150000MCD.4, With USB cable, could be charged by USB port5, Easy to use, no need ... be charged when put the product on the area with enough natural light. It will cost about 12 ... 1, Scrub the product by using clean cotton cloth with little alcohol.2, Do not use the volatile ... natural light when charging.3, Make sure the battery with enough power.4, Please charge the product when ...